Search results

Sort By:

Limit search:

Influence of Growth Conditions of Hydrogenated Amorphous Silicon Carbide on Optical Properties of the Interfacial Layer in SiC-Based Photodevice

100%

Kaci S., Keffous A., Bozetine I., Trari M., Fellahi O.

Acta Physica Polonica A

2016

vol. 130

issue 1

463-465

The attention has been focused on the optical properties of structures of the form Au/MS/a-Si_{1-x}C_x:H/Si(100)/Al as a function of the deposition temperature of the a-Si_{1-x}C_x:H films. The amorphous SiC:H films were obtained for different temperatures ranging from 150°C up to 500°C. By photoluminescence, blue emission from all the structures was observed at room temperature and a high emission was obtained for sample whose amorphous film was deposited at 500°C. The spectral response of Au/MS/a-Si_{1-x}C_x:H/Si(100)/Al structures with a-Si_{1-x}C_x:H film deposited at 250°C, exhibits a maximum value at λ=950 nm while for structure with a-Si_{1-x}C_x:H film obtained at 150°C, a maximum value of λ was observed at 400 nm.

Photochemical Conversion of CO₂ into Methyl Alcohol Using SiC Micropowder under UV Light

86%

Azzouz F., Kaci S., Bozetine I., Keffous A., Trari M., Belhousse S., Aissiou-Bouanik S.

Acta Physica Polonica A

2017

vol. 132

issue 3

479-483

In our study, microparticles SiC powder was investigated as a catalyst for CO₂ photoreduction into methanol under UV light. The photochemical conversion of methanol was studied as function of time of exposition, the concentration and the grain size of the catalyst. The selectivity of the used catalyst to promote methanol formation was noticed. It was noticed also that the grain size and concentration have a great impact on the photochemical conversion of CO₂ to methanol. The best yield of methanol was achieved when a concentration of 0.75 M of SiC powder of 17 μm grain size and an exposure time to UV light of 2 h where assured. Maximum molar concentration of methanol achieved was under UV irradiation of 365 nm. Therefore, the catalytic property of silicon carbide has proved its efficiency in the photochemical conversion of CO₂ into alcohol thus far under UV light.

Refine search results

2 Acta Physica Polonica A

1 2017

1 2016

2 Bozetine I.

2 Kaci S.

2 Keffous A.

2 Trari M.

1 Aissiou-Bouanik S.

1 Azzouz F.

1 Belhousse S.

1 Fellahi O.

Search results

Influence of Growth Conditions of Hydrogenated Amorphous Silicon Carbide on Optical Properties of the Interfacial Layer in SiC-Based Photodevice

Photochemical Conversion of CO₂ into Methyl Alcohol Using SiC Micropowder under UV Light